Dataset Information

Long-term results of uncemented allograft prosthesis composite reconstruction for the tumor in proximal femur: a minimum follow-up of sixty-five months.

ABSTRACT:

Background

Uncemented allograft prosthesis composite (APC) has been applied for tumorous bone defect reconstruction in the proximal femur. However, the long-term results are rarely reported. This study aimed to evaluate long-term outcomes of uncemented APC.

Methods

Eighteen patients who received uncemented APC reconstruction in the proximal femur after tumor resections were retrospectively reviewed.

Results

The average resection length was 110?mm (80-154) and the average follow-up was 106.7?months (65-141). Bone union achieved in all patients with an average duration of 7.6?months (5-10). The average HHS, MSTS score and gluteus medius strength at one-year follow-up were 88.0 (80-94), 25.2 (22-28) and 4 (3-5), respectively. While at the last follow-up, the HHS, MSTS score and gluteus medius strength were 83.0 (48-100), 24.0 (10-30) and 4 (2-5), respectively. Five intraoperative fractures were fixed with cerclage wires. Two postoperative periprosthetic and prosthetic fractures received a revision. Three local recurrent patients received a secondary surgery. One of these three lung metastatic patients underwent lung metastatic tumor resection. Another two patients were diagnosed with both bone and lung metastases, only one of them underwent amputation. Two greater trochanteric fractures received no treatment. There were10 severe, 3 moderate and 5 mild allograft resorptions without treatment.

Conclusion

Uncemented APC is a reliable reconstruction for neoplastic bone defect of the proximal femur, especially for the young patient who expected long-life expectancy and good function. Though allograft resorption and trochanteric fracture are the common complications, they seem no effect on the function.

SUBMITTER: Liu C

PROVIDER: S-EPMC7849157 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Publications

Long-term results of uncemented allograft prosthesis composite reconstruction for the tumor in proximal femur: a minimum follow-up of sixty-five months.

Liu Cai C Min Li L Zhou Yong Y Luo Yi Y Tang Fan F Lu Minxun M Duan Hong H Zhang Wenli W Yu Xinzhu X Tu Chongqi C

BMC musculoskeletal disorders 20210201 1

<h4>Background</h4>Uncemented allograft prosthesis composite (APC) has been applied for tumorous bone defect reconstruction in the proximal femur. However, the long-term results are rarely reported. This study aimed to evaluate long-term outcomes of uncemented APC.<h4>Methods</h4>Eighteen patients who received uncemented APC reconstruction in the proximal femur after tumor resections were retrospectively reviewed.<h4>Results</h4>The average resection length was 110 mm (80-154) and the average fo ...[more]

PMID: 33522918

Similar Datasets

Project description:BackgroundHip megaprostheses are a long known reconstructive method in the treatment of proximal femur metastases. The use of cemented or uncemented stems is still matter of debate. The aim of this study to compare cemented and uncemented megaprostheses on functional outcomes and complications, in order to establish the role of cementation.MethodsWe retrospectively analysed 51 metastatic patients with proximal femur metastases treated with endoprosthetic reconstruction by megaprostheses, 25 with cementless stems and 26 with cemented ones with different megaprosthetic implants. The primary endpoint was MSTS score, and the secondary endpoint was to state the incidence of surgical and clinical complications in the two groups. An un-paired T test was used to compare anthropometric, anamnestic data, and MSTS. Chi-square test was performed for evaluation of complication in the two group. Multiple linear regression was used to match the functional outcomes and complications' incidence in the population study. Logistic regression was performed to analyse the odds ratio of different parameters and their role in the incidence of complications.ResultsThe mean follow-up was 50.1 months (+ 12.5). In thirty case right side was involved. No statistical differences were noticed between Group A and B regard the age, gender, active fracture/impending fracture. Comparing the MSTS results within the two groups at last follow-up, the score cemented group was higher than cementless one (17.9 + 7.8 vs 24.2 + 5.3; statistical significance p = 0.001). Regarding surgical complications a logistic regression was performed to analyse the odds ratio of age, cementation and length of resection; cementation confirm and odds ratio of 11 times in the incidence of surgical complications.ConclusionsCementation seems to be more liable to complications onset, while improves functional score in metastatic patients compared to uncemented megaprostheses. More studies have to be conducted in order to create a protocol and establish criteria to use cemented or uncemented stems in a frail population like metastatic patients.

Dataset Information

Long-term results of uncemented allograft prosthesis composite reconstruction for the tumor in proximal femur: a minimum follow-up of sixty-five months.

Background

Methods

Results

Conclusion

Publications

Long-term results of uncemented allograft prosthesis composite reconstruction for the tumor in proximal femur: a minimum follow-up of sixty-five months.

Similar Datasets

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